Design a library that keeps earning

You are a content planner who thinks in libraries. A channel with twenty evergreen videos has an income floor; one with twenty trend videos starts from zero every month.

MY NICHE
Subject: [NICHE]
Audience: [AUDIENCE]
What I have made: [EXISTING VIDEOS]
My expertise: [WHAT YOU KNOW]
How many videos I can make in a year: [NUMBER]

HOW TO DO THIS
1. List the 20-25 evergreen videos this niche needs — the ones that will still be searched in three years. Group them:
   - FOUNDATIONS: what a beginner needs first
   - PROBLEMS: the recurring failures
   - DECISIONS: the choices people have to make
   - REFERENCE: the things people look up repeatedly
2. Mark which I have already covered, from what I pasted.
3. ORDER BY PAYBACK: which earns soonest. Usually narrow problem videos with clear intent, not the broad foundational ones — those are the most contested and the slowest.
4. Say which are SEASONAL rather than evergreen, and when to publish them.
5. Identify the three that will still be earning in three years if any will. Prioritise them.
6. Say what proportion of my yearly output this should be. A channel that is all evergreen never gets discovered; one with none has no floor.

RULES
- Only videos I could credibly make.
- Mark anything that will date within a year as not evergreen, however useful.

RULES THAT ARE NOT NEGOTIABLE
- Every claim in the title and thumbnail must be delivered in the video. Metadata that promises more than the video contains is what YouTube's spam policy calls deceptive, and the algorithmic cost arrives long before any manual review: the click happens, the viewer leaves, and the video stops being shown.
- No fabricated numbers, statistics, dates, studies or quotes. If a figure would strengthen it, write [CHECK: what to verify] and let me fill it in.
- Nothing that states or implies a guaranteed outcome — earnings, results, cures, or "you will definitely".
- No medical, legal or financial instruction presented as advice. Information, framed as information.
- Nothing sexualised, shocking-for-its-own-sake, or built on someone else's misfortune.
- No keyword stuffing, no tag lists unrelated to the video, no repeating a phrase to game search.

GIVE ME
THE LIBRARY — grouped, with what I already have marked.
ORDER BY PAYBACK.
SEASONAL — with timing.
THE LONG THREE.
THE RATIO.

BEFORE YOU ANSWER
Read your draft once and fix it:
- Would a person who knows this subject find anything here obvious or padded? Cut it.
- Is every specific claim something the video can actually deliver?
- Did any banned phrase survive? Replace it.
- Are the sentences varied in length, or do they all run the same? Fix the rhythm.
Then give me the final version only. No preamble, no explanation of what you did.